manufacturing resource models ie550 dr. r. a. wysk
TRANSCRIPT
Manufacturing Resource Models
IE550
Dr. R. A. Wysk
A Resource Model
• Something like a list of things (resources)
• Something like an architecture of these things
• Some type of capabilities model
Things in a Manufacturing System
• Men
• Materials
• Machines
• Money
Men
• Agents used to plan and conduct material transformation– Normally used in conjunction with some
machine
Material
• The entity that gets transformed or gets used in the transformation– Material is usually referred to as product
substance, i.e., raw material
Machines
• Entities that are used to increase power, precision and direct a material transformation– Many classes of machines
• Machines within machines
Money
• The entity that makes getting men, material and machines possible.
Types of Architectures
• All kinds of architectures in a manufacturing facility– Physical– Logical– Organizational
Functional Architecture
• How tasks relate to each other
• Sales
• Marketing
• Order entry
• Production control
• Process planning
• Etc.
Equip Equip Equip Equip Equip Equip
Wkstn WkstnWkstnResource Manager
Shop
A Collection of Controllers
Planning Scheduling ExecutionEquip Operations-level
planning (e.g. tool pathplanning)
Determining the start/finishtimes for the individualtasks. Determining thesequence of part processingwhen multiple parts areallowed.
Interacting with themachine controller toinitiate and monitor partprocessing.
Wkstn Determining the partroutes through theworkstation (e.g.selection of processingequipment). Includesreplanning in response tomachine breakdowns.
Determining the start/fininshtimnes for each part on eachprocessing machine in theworkstation
Interacting with theequipment levelcontrollers to assign andremove parts and tosyunchronize theactivites of the devices(e.g. as required whenusing a robot to load apart on a machine tool).
Shop Determining the partroutes through the shop.Splitting part orders intobatches to match materialtransport and workstationcapacity constraints.
Determining the start/finishtimes for part batches ateach workstation.
Interacting with theworkstation controllersand the ResourceManager todeliver/pickup parts.
A Hierarchical Controller Architecture
Connectivity Graph
• Adjacency relationships
• Connects product flow
Physical Model - Processing Workstation
S
po rt_a rr ive
port_p ickport_depart
bs_p ick bs_put
port_put
E
Po rt MH
B S
mp_pickmp_put
MP
mp_pick
mp_put
MP
Fadal CNC Machining Center
Fanuc M1L Robot
Daewoo Puma 6 Turning Center
Classes of Equipment Resources
• Material Processors
• Material Handlers
• Material Transporters
• Warehousing
• Buffers
Fadal VMC-20 Table size: 29.5"x16"
Floor to table surface: 30" T-slots (No. x Width x Span): 3x.562"x4.33"
Cutting feed rate: 0.01"-250" Rapid feed rate: 400"/Min
Max. weight on table: 1,000 Lbs Axis drive motor: DC, 1,800 Lb. Thrust
Ball Screw size: 1.25" Dia. X/Y/Z Longitutinal (X axis): 20"
Cross (Y axis): 16" Vertical (Z axis): 20"
SPindle nose to table: 4"-24" Main motor: 7.5 HP, 5.6 KW
Torque: 135 FT-lbs Accuracy, axis positioning: +/- 0.0002" Accuracy, axis repeatability: +/- 0.0001"
Glass scales: N/A Spindle speed: 75-6,500 RPM
Tooling